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PROCESS FOR COMPLETING THE MICROELEMENT CONTENT OF SOILS
PROCESS FOR COMPLETING THE MICROELEMENT CONTENT OF SOILS
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机译:完成土壤中微量元素的过程
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摘要
In addn. to natural soil improving cpds. as manure, compost and humans, a homogous mixt. of red-sludge ex alumina prodn. and/or of inferior bauxite mineral unsuitable for aluminium
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